Abstract : Early vaginal bleeding with a closed cervix and a viable embryo is known as imminent abortion, and it increases the chance of unfavorable pregnancy outcomes. In the acute phase, fibrinogen is a positive protein while albumin is a negative one. There is some evidence that the fibrinogen-albumin ratio (FAR) can provide information about coagulation, nutrition, and inflammation. Particularly in Indonesia, there is a lack of research on the correlation between FAR and imminent abortion. Analyzing the relationship between FAR and the incidence of imminent abortion. This is an observational analytical study with a cross-sectional design involving 80 pregnant women with gestational ages of 6–20 weeks from several hospitals in Makassar. A total of 35 pregnant women with imminent abortion, 10 pregnant women with spontaneous abortion, and 35 pregnant women with normal pregnancies. Serum fibrinogen and albumin levels were measured using the ELISA method, then calculated FAR. Data were analyzed statistically to evaluate the relationship between variables using IBM SPSS Statistics Version 30. The mean fibrinogen levels in the imminent abortion and spontaneous abortion groups were significantly higher than those in normal pregnancies (p<0.001). Albumin in imminent abortion was significantly higher than in spontaneous abortion and normal pregnancies (p < 0.001), while FAR in imminent abortion was significantly lower than in spontaneous abortion and normal pregnancies (p<0.001). Fibrinogen, albumin, and FAR levels differed significantly in the three groups, with the same pattern also found in early pregnancy. In late pregnancy, only albumin and FAR differed significantly in the three groups (p<0.001), and there was no difference in fibrinogen in the three groups (p = 0.056). FAR and albumin showed significant differences between imminent abortion and normal pregnancy at advanced gestational age.